Answer:
x = (k-c)/8
Step-by-step explanation:
8x+c= k
Subtract c from each side
8x+c-c= k-c
8x = k-c
Divide each side by 8
8x/8 = (k-c)/8
x = (k-c)/8
Solve both sides and check to see if the solutions match.
(10 • 2) = 20
20 • 3 = 60
Now check the other side:
(2 • 3) = 6
10 • 6 = 60
Compare the solutions:
60 = 60
This is true, so the answer is A. True.
Answer:
The correct answer is C.
.
Step-by-step explanation:
The polar coordinates are defined in terms of r and θ, where r is the distance of the point from the origin and θ is the angle made with the positive x-axis.
To convert from Polar Coordinates (r, θ) to Cartesian Coordinates (x, y) apply the following conversion formulas:

We know that
and 
So, the cartesian coordinates are,


The correct answer is C.
.